UIUC PSYC 100 - Surveys, Correlational Studies, and Experimental Designs (2 pages)

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Surveys, Correlational Studies, and Experimental Designs



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Surveys, Correlational Studies, and Experimental Designs

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Definition of a survey, correlational study, illusory correlation, experimental design


Lecture number:
3
Pages:
2
Type:
Lecture Note
School:
University of Illinois at Urbana, Champaign
Course:
Psyc 100 - Intro Psych

Unformatted text preview:

PSYC 100 1nd Edition Lecture 3 Outline of Last Lecture II Intuitive Vs Analytical Thinking III Algorithm Vs Heuristic Thinking a Different types of heuristic thinking IV Definition of operational V What is naturalistic observation Outline of Current Lecture VI The definition of a survey VII What is a correlation study a Definition of a correlation coefficient b Definition of illusory correlation VIII What is an experimental design a What it requires Current Lecture VI The definition of a survey A survey is the use of interviews or questionnaires They require special considerations including wording sampling and social desirability Surveys also require random selection which ensures every person in a population has an equal chance of being chosen to participate VII What is a correlation study A correlational study examines how variables are naturally related in the real world without any attempt by the researcher to alter them It only attempts to see if variables are related to each other It does not indicate if one causes the other A correlation coefficient r is used to describe the strength of a correlation The absolute value is always between 0 and 1 When r 1 there is a positive correlation When r 0 there is no correlation and when r 1 there is a negative correlation An illusory correlation is the perception of a relationship where none exists It is when you tend to notice two abnormal events occurring together but fail to notice times when they do not An example of this would be thinking that it always rains when you wash your car These two things may appear to be related but they are not VIII What is an experimental design An experimental These notes represent a detailed interpretation of the professor s lecture GradeBuddy is best used as a supplement to your own notes not as a substitute design is the only thing that can determine causality Case studies correlational studies and observations are not experiments because you cannot determine causation without use



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